Quartz
Otome mine, Kurobera, Kofu City, Kinpuzan mining district, Yamanashi Prefecture, Japan
5.2 x 3.7 x 2.1 cm. From the original "Japan-law" locality for the twinning habit for quartz, here is a lovely small cabinet specimen featuring a very sharp, highly lustrous, gemmy, fairly thick, well-formed twin with water-clear clarity in areas. This piece is old, hard to say how far back it dates, but it could be over a century. From the ...
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